Refractory Sand for Electronic Ceramic Sintering, Anti-Sticking, Low-Sodium White Fused Alumina F80-F120
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- Address:Songshan Road, Zip: 450000
- Contact: 陳經(jīng)理
- Tel:13526538098
- Email:panchen@hxabrasive.com
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Anti-Sticking Refractory Sand for Electronic Ceramic Sintering: Low-Sodium White Fused Alumina F80-F120
The sodium oxide content of anti-sticking refractory sand for electronic ceramic sintering, low-sodium white fused alumina F80-F120, is below 0.2%, and the silicon-iron impurity content is also very low. It is processed from high-purity electrically fused white fused alumina through crushing, chemical treatment, water washing and overflow, sedimentation, and drying. The alpha phase conversion rate of high-purity micro-sodium white fused alumina is over 97%, with a higher specific gravity than medium-sodium white fused alumina, high bulk density, low porosity, high refractory stability, strong high-temperature hardness, small thermal shrinkage and expansion, and excellent thermal stability. It can be used not only in traditional grinding tools, abrasives, and wear-resistant fields but also in advanced alumina ceramics, high-temperature coatings, precision casting, and other industries.
Features of Anti-Sticking Refractory Sand for Electronic Ceramic Sintering: Low-Sodium White Fused Alumina F80-F120:
1. High bulk density, good compactness, and low porosity.
2. High corundum phase content, high hardness, and excellent high-temperature strength.
3. High refractory temperature and strong high-temperature stability.
4. Low high-temperature thermal expansion coefficient and strong volume stability.
5. Good chemical stability, resistant to acid and alkali corrosion.
6. High particle concentration uniformity, even granules, and good fluidity.
7. Neutral pH and low electrical conductivity.
Typical Chemical Indicators:
Low-Sodium White Fused Alumina Grit
Component | F30 | F36 | F60 |
|---|---|---|---|
AL2O3 | 99.8% | 99.82% | 99.84% |
NA2O | 0.139% | 0.128% | 0.106% |
SiO2 | 0.033% | 0.032% | 0.032% |
Fe2O3 | 0.025% | 0.022% | 0.026% |
Low-Sodium White Fused Alumina Micro Powder
Component | F240 | F320 | F800 |
|---|---|---|---|
AL2O3 | 99.860% | 99.826% | 99.725% |
NA2O | 0.051% | 0.058% | 0.069% |
SiO2 | 0.068% | 0.078% | 0.158% |
Fe2O3 | 0.021% | 0.038% | 0.048% |
Low-Sodium White Fused Alumina Fine Powder and Grit
Item | 325F(325#-0) | 0-1mm |
|---|---|---|
AL2O3 | 99.83% | 99.64% |
NA2O | 0.0645% | 0.105% |
SiO2 | 0.0276% | 0.0426% |
Fe2O3 | 0.0074% | 0.0288% |
Typical Physical Indicators of High-Purity Micro-Sodium White Fused Alumina
Color | White |
|---|---|
Hardness | Mohs 9.0 |
Service Temperature | 1900 ℃ |
Melting Point | 2250 ℃ |
Specific Gravity | 3.95g/cm3 |
Bulk Density | 3.9-3.95 g/cm3 |
Crystal Shape | Multi-angular |
Production Specifications:
Grit | 0-1mm, 1-3mm, 3-5mm, 5-8mm |
|---|---|
Fine Powder | -100#, -200#, -320# |
Grain Sand | F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
Micro Powder | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 |
Main Applications of High-Purity Micro-Sodium White Fused Alumina:
High-temperature thermal spray materials.
High-quality ceramic grinding wheels.
Laying and insulating powder for electronic ceramic sintering.
Refractory materials such as linings and castables.
Raw material for high-end alumina ceramics like water filtration alumina ceramic membrane tubes.
Shell making and slurry addition in precision casting such as investment casting, replacing zircon sand to reduce casting costs.
| Industry Category: | Construction & Building Materials/Thermal Insulation Materials/Refractory Materials |
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